:root {
    --header-line-height: 15rem;
    --bottom-line-height: 15rem;
    --tabbar-img-size: 7rem;
}

.page {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.header-line {
    width: 100vw;
    height: var(--header-line-height);
    text-align: center;
    font-size: 4.5rem;
    line-height: var(--header-line-height);
    font-weight: 900;
    box-shadow: 0 0 2rem 0 rgba(0, 0, 0, 0.1);
    background-color: #fff;
}

.main-content {
    box-sizing: border-box;
    width: 100vw;
    padding: 0 5rem;
    flex: 1;
    overflow: auto;
}


.bottom-line {
    width: 100vw;
    height: var(--bottom-line-height);
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    box-shadow: 0 0 2rem 0 rgba(0, 0, 0, 0.1);
    background-color: #fff;
}

.tabbar-box {
    width: 24rem;
    height: 15rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.tabbar-img {
    width: var(--tabbar-img-size);
    height: var(--tabbar-img-size);
    background-size: cover;
    background-image: var(--tabbar-img-url);
}

.tabbar-text {
    font-size: 3rem;
}